| 双层壳-流耦合系统的频散方程 |
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| 引用本文： | 赵翔, 徐健学, 江俊. 双层壳-流耦合系统的频散方程[J]. 声学学报, 1996, 21(3): 217-223. DOI: 10.15949/j.cnki.0371-0025.1996.03.004 |
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| 作者姓名： | 赵翔 徐健学 江俊 |
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| 作者单位： | 西安交通大学非线性动力学研究所 |
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| 摘 要： | 同轴圆柱体弹性薄壳(以下简称双层壳)与内外壳间均匀流动的环形流所构成的双层壳-流耦合系统的频散特性,是研究该系统声振特性的基础。本文从Flügge无限壳体方程和均匀流场中的声波方程出发,利用边界条件,对该系统的频散方程进行了推导,并给出了相应的算例。
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| 收稿时间： | 1994-12-17 |
| 修稿时间： | 1995-06-07 |
Dispersion equation of double shell-fluid coupled system |
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| ZHAO Xiang, XU Jianxue, JIANG Jun. Dispersion equation of double shell-fluid coupled system[J]. ACTA ACUSTICA, 1996, 21(3): 217-223. DOI: 10.15949/j.cnki.0371-0025.1996.03.004 |
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| Authors: | ZHAO Xiang XU Jianxue JIANG Jun |
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| Abstract: | The dispersion behaviour of the double shell-fluid system,which consists of two thin concentric cylindrical elastic shells (hereafter referred to as a double shell simply) coupled by the entrained annular fluid,is a fundamental for investigation of it's vibroacoustical characteristics.Based on Flügge's infinite shell equation,the sound wave equation for the fluid field,and boundary conditions at the fluid-structure interfaces,the dispersion equation for the system is deduced and a corresponding numerical example is given in the paper |
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